MR vessel wall imaging is commonly performed with
alternate R-wave cardiac gating which improves SNR and robustness to
variations in RR-interval, but results in one redundant cardiac cycle in
every two.The redundant cardiac cycle
has been used to image an additional parallel slice in 2D carotid wall
imaging.Beat-to-beat respiratory
motion correction (B2B-RMC) can obtain 3D coronary wall images with ~100%
respiratory efficiency.We have used
the redundant cardiac cycle to acquire an additional 3D volume in coronary
vessel wall imaging with B2B-RMC, resulting in simultaneous targeted high
resolution left and right 3D coronary vessel wall imaging in ~10minutes.